探地雷达波振幅与土壤含水量关系的数值模拟

doi:10.3969/j.issn.0255-8297.2015.01.005

应用科学学报 ›› 2015, Vol. 33 ›› Issue (1): 41-49.doi: 10.3969/j.issn.0255-8297.2015.01.005

探地雷达波振幅与土壤含水量关系的数值模拟

1. 首都师范大学资源环境与地理信息系统北京市重点实验室，北京10048
2. 首都师范大学城市环境过程与数字模拟国家重点实验室培育基地，北京10048
3. 首都师范大学三维信息获取与应用教育部重点实验室，北京100048

收稿日期:2014-12-02 修回日期:2014-12-28 出版日期:2015-01-30 发布日期:2015-01-04
通信作者: 钟若飞，教授，博导，研究方向：车载激光测量，E-mail: zrfsss@163.com
基金资助:
国家科技支撑计划课题基金(No.2012BAH34B01)；国家自然科学基金(No.41371434)

Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil

Received:2014-12-02 Revised:2014-12-28 Online:2015-01-30 Published:2015-01-04

摘要/Abstract

摘要： 通过建立探地雷达波振幅与土壤介电常数之间的定量关系可反演土壤含水量. 在采用时间域有限差分法建立土壤分层模型的基础上，模拟探地雷达电磁波在均匀分层土壤介质中的传播特性，分析土壤介电常数与雷达回波振幅之间的变化规律，证实了回波振幅随着介电常数的增大而减小，总结出介电常数与振幅之间的幂函数关系式. 最后通过室内土壤模型对此关系式进行了验证，结果表明由此关系式反演出的土壤含水量值与土壤三参数仪测定的含水量值相一致.

关键词: 含水量, 探地雷达, 数值模拟

Abstract: Water content in soil can be derived from the relation between changes in ground penetrating radar signals and the soil’s dielectric constant. Using the finite difference time domain (FDTD) method, a model of layered soil is established to simulate ground penetrating radar electromagnetic waves in the soil. The transmission characteristics of layered soil are analyzed using the model. The results indicate that a functional relation exists between the soil dielectric constant and the amplitude, i.e., the wave amplitude decreases with the increased electric constant. With an indoor soil model, the obtained relationship
is verified: the computed water content agrees with the wet sensor data.

Key words: water content in soil, ground penetrating radar, numerical simulation

中图分类号:

李蕙君1,2,3，钟若飞1,2,3. 探地雷达波振幅与土壤含水量关系的数值模拟[J]. 应用科学学报, 2015, 33(1): 41-49.

LI Hui-jun1,2,3, ZHONG Ruo-fei1,2,3. Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil[J]. Journal of Applied Sciences, 2015, 33(1): 41-49.

参考文献

[1]      PARIVA D, ASHI Q, RUCHI B. A review of the methods available for estimating soil moisture and its implications for water resource management [J]. Journal of Hydrology, 2012, 458: 110-117.
[2]      WIGNERON J P, CALVET J C, PELLARIN T. Retrieving near-surface soil moisture from microwave radiometric observations: current status and future plans [J]. Remote Sensing of Environment, 2003, 85: 489-506.
[3]      JACKSON T J, SCHMUGGE J, ENGMAN E T . Remote sensing applications to hydrology: Soil moisture [J]. Hydrol. Sci. J,1996, 41: 517−530.
[4]      HUIIMAN J A , SPERL C, BOUTEN W，VERSTRATEN J M . Soil water content measurements at different scales accuracy of time domain reflectometry and ground-penetrating radar[J]. Journal of Hydrology, 2001, 245: 48-58.
[5]      HUISMAN J A , SNEPVANGERS J J J C , BOUTEN W， HEUVELINK, G B M. Mapping spatial variation in surface soil water content comparison of ground-penetrating radar and time domain re?ectometry[J]. Journal of Hydrology, 2002, 269: 194-207.
[6]      ALUMBAUGH D, CHANG PY. Estimating moisture contents in the vadose zone using cross-borehole ground penetratin Radar: A study of accuracy and repeatability[J]. Water Resources Research, 2002, 12: 45_1-45_2.
[7]      GALAGEDARA L W, PARKIN G W, Redman J D. Field studies of the GPR ground wave method for estimating soil water content during irrigation and drainage[J]. Journal of Hydrology, 2005, 301: 182-197.
[8]      LUNT I A, HUBBARD S S, RUBIN Y. Soil moisture content estimation using ground-penetrating radar reflection data[J]. Journal of Hydrology, 2005, 307: 254-269.
[9]      APRIL Y，RICHARD G Z, EDWARD A M. Estimating water content in an active landfill with the aid of GPR[J]. Waste Management, 2013,33: 2015-2028.
[10] MINET J, WAHYUDI A, BOGAERT P. Mapping shallow soil moisture profiles at the field scale using full-waveform inversion of ground penetrating radar data[J], Geoderma, 2011, 161: 225-237
[11] BENEDETTO A . Water content evaluation in unsaturated soil using GPR signal analysis in the frequency domain[J]. Journal of Applied Geophysics, 2010, 71: 26-35.
[12] NICOLAESCU I, van GENDEREN P. Performances of a stepped-frequency continuous-wave ground penetrating Radar[J]. Journal of Applied Geophysics, 2012, 82:59-67.
[13] SCHMALZ B, LENNARTZ B, WACHSMUTH D. Analyses of soil water content variations and GPR attribute distributions [J]. Journal of Hydrology, 2002, 267:217-226.
[14] CHANZY A, TARUSSOV A, JUDGE A，BONN F. Soil water content determination using a digital ground-penetrating Radar[J]. Soil Sci. Soc. Am. J., 1996, 60: 1318-1326.
[15] Yee K S. Numerical solution of initial boundary walue problems involving Maxwell’s eqation in isotropic media [J]. IEEE Trans Antennas Propagat, 1966,14(3):302-307.
[16] TOPP G C, DAVIS J L, Annan A P. Electromagnetic determination of soil water content: Measurements in coaxial transmissions lines [J]. Water Resource Research, 1980, 16: 574-582.
[17] 朱安宁, 吉丽青, 张佳宝. 基于探地雷达的土壤水分测定方法研究进展[J]. 中国生态农业学报, 2009, 17(5): 1039-1044.
ZHU A N, JI L Q, ZHANG J B. Research progress on soil moisture measurement via ground-penetrating radar[J]. Chinese Journal of Eco-Agriculture, 2009, 17(5): 1039-1044.
[18] DEAN G. Ground-penetrating radar simulation in engineering and archaeology[J]. GEOPHYSICS, 1994, 2(59): 224-232.
[19] ROBINSON D A, JONES S B, Wraith J M. A review of advances in dielectric and electric conductivity measurements using time domain reflectometry[J]. Vadose Zone J., 2003, 2: 444-475
[20] 赵春江, 王成, 侯瑞峰. 土壤三参数测量方法 [J]， 2007，现代科学仪器， 5: 100-104.
ZHAO C J, WANG C, HOU R F. Preliminary study of the three soil parameters measurement methods[J]. Modern Scientific Instruments, 2007. 5:100-104.

探地雷达波振幅与土壤含水量关系的数值模拟

Numerical Study on the Relationship between Amplitudes of Ground Penetrating Radar Wave and Water Content in Soil

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